Chaelbs g



(No Model.)

' O. G. PERKINS.

ELEGTRIG LAMP AND SWITGH.

Patented Dec. 18, 1883.

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- mlllllilllllll lllnmh f Nrrnn STATES SHARLES c. PERKINS, or NEW YORK, N- Y., ASSIGNOR pro THE IMPERIAL nnnorero LIGHT COMPANY, or SAME PLACE.

ELECTRIC LAMP AND SWITCH.

SPECIFICATION forming part of Letters Patent No. 290,469, dated December 18, 1883.

Application filed June 2, 1883.

To all whom it may concern.-

Be it known that 1, CHARLES G. PERKINS, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in an Electric Incandescent Lamp and Switch, of which the following is a specification.

My and switch, the lamp having a series of carbonfilaments therein, and illuminated by electricity conveyed thereto by a new and novel multiple-switch mechanism, fully described hereinafter.

The first part of my invention consists of mounting a spiral spring on the ends of the wires connected with the clamp, said wires representing one of the poles of the lamp. The upper part of the aforesaid spiral is made so as to fit the wire tightly, thus securing a perfeet electrical contact therewith. The lower portion forms the spring, which engages with the cireuitconnections of the switch.

The second part of my invention consists of 2 5 a disk of plaster-otparis provided with cylindrical apertures, which serves as a guide for the aforesaid spiral spring. Said disk has one or more notches cut in the edge thereof for the purpose of admitting soft plaster-ofparis, to 0 be poured through when sealing it in the base of the lamp.

The third part of my invention consists of a series of metallic rings insulated from each other by plaster-of-paris, the whole forming 3 5 one solid mass and mounted on the top of the switch-box. Each of the aforesaid metallic rings represents one and the same pole of. the lamp, and are electrically connected with the current-connections thereof.

'The fourth part of my invention consists of a glass attachment provided with a cylindrical hollow having a series of grooves therein for the reception of metallic wires fastened thereto in any suitable manner. The upper 5 end of each wire extends therefrom perpen dicularly, and is connected with the metallic rings arranged on the top of the switch-box. The aforesaid glass attachment is fastened to a right-angle metallic bar having an upright invention relates to an electric lamp also provided with a stop-collar which abuts (No model.)

' screw on the horizontal portion thereof. Said 5o screw passes up and through the glass top of the switch-box, and is held rigid thereto by a screw-nut or other suitable means. The other portion of the metallic bar is provided with a slot extending from the end thereof to a suitable distance above.

The fifth part of my invention consists of a disk of fiber or other suitable material, held rigid to the top of the glass base of the switchbox by a metallic screw-nipple, the lower portion of which receives the nipple of an ordinary gas fixture or electrolier. The aforesaid fiber disk is provided with an upright metallic standard having a tightening'screw near the top thereof, said standard representing one of the poles of the lamp. The fiber disk is also provided with a metallic screw representing the other pole of the lamp. The base of the aforesaid standard is electrically connected with one of the wires leading to the main-line wires. The aforesaid screw is electrically connected with the other wire leading to the main line.

8 against a sleeve rigidly fixed to the wall of 5 the switch-box.

The seventh part of my invention consists of a spiral spring having one of its ends rig idly fastened to the head of the aforesaid second spindle, the other end engaging with a notch made on the end of the swivelsleeve. Said spiral springs encircle the spindle carrying the said swivel-sleeve.

I do not wish to confine myself to the exact form of the multiple switch-spring as herein described, as I am aware that the fingers can be made of separate pieces and suitably-fast- 40 within the neck b.

ened to a'sleeve or spindle without departing from the spirit of my invention.

In the drawings, Figure 1 represents a vertical section of the glass switch-box and lamp. Fig. 2 represents detail views of the glass attachment with the metallic wires attached thereto. Fig. 3 are detail views of the right angle metallic bar. Fig. 4 are detail views of the metallic rings held together by plaster-ofparis. Fig. 5 is a perspective view of the metallic switch-spring and swivel-sleeve. Fig. 6 is a development of the switch-spring. Fig.

7 is a detail view of the spindles, spiral spring, and swivel-sleeve. Fig. 8 is a detail View of the plaster-of-paris disk. Fig. 9 is a detail view of the spiral spring connected with the conductor leading to the clamps holding the carbon filaments.

Similar letters refer to similar parts throughout the drawings, in whicha represents the globe, b the neck thereof, I containing the plaster-of-paris disk 0, which is held therein by the plaster-of-paris c.

d are the cylindrical apertures which serve as a guide for the spiral springs e, a portion of which is made so as to fit the conductors 1 -2 3 4 snugly, so that a perfect electrical contact may be secured therewith, and is held rig-id by the plaster-of-paris c. Said spiral springs come in contact with the'metallic rings f, which are electrically connected with the wires 5 6 7 8 embedded in the grooves g of the glass attachment h. i i is the right-angle metallic bar, rigidly fast- 'ened to the attachment h.

z" is the upright metallic screw, integral with the bar i. Said screw 2" enters the nut or sleeve k, to which the conductors 1 2 3 4: are

electrically connected. Said sleeve is is held 1 It will be observed that the conductors 1 2 3 at represent one and the same pole, while 1 2 3 4. represent the other.

Zis the-slot made in the lower portion of the bang. v

o is the fiber disk, mounted with the metallic upright i, and having a tightening-screw, i connected therewith.

o is a metallic screw which engages with the spring 13 when the switch-box is joined together.

W is the metallic nipple holding the .glass base B and fiber disk together. 14. and 15 are the conductors leading to the main-line wires of the circuit.

'17 is the multiple switch-spring, provided with the fingers 9 10 11 12. Said switch-spring is fastened to the swivel-sleeve it, provided with a notch, a, at one end thereof, the whole mounted on the spindle 0, connected with the spindle p by the screw-threaded end 0 of o. p is the head of the spindle 17, having one end of the spiral spring Q rigidly fastened thereto. The other end engages with the notch a of the swivel-sleeve n.

r is the metallic sleeve, rigidly fixed to the glass wall of the switch-box. Said sleeve serves as abearing for the spindle p,which is mounted with a handle,

t is the stop-collar.

Mode of construction: The neck of the globe is first partly filled with mineral wool. The plaster-of-paris disk 0 is properly adjusted. Then the plaster-of-p'aris c is poured into the neck 1) until it shall reach the disk 0, and remains so until it becomes hardened, after which the lamp is complete. The glass attachment h is first mounted with the conductors 5 6 7 8, then with the right-angle bar 2'. The whole is fastened to the glass top A by the screw-nut a. The wires 5 6 7 8 are then soldered to the metallic rings f. The base of the switch-box is then mounted with a fiber disk, o,which hasconnected therewith the metallic upright i and screw 1), which is then secured to the glass base by the metallic nipple w. The spindle carrying the multipleswitch is secured to the wall of the switch-box. The switch-box is then put together in the following manner: The wall B is placed in the annular groove B. The upper portion is then placed above the wall B in a manner that will bring theslot 1 directly over the screw 1', at which time the upper portion is pressed down until it fits the top of the wall B snugly, after which the screw is tightened by means of a suitable instrument passing through the aperture O. The lamp is then mounted on the screw 13, and turned until the springs e shall i have made a perfect electrical contact with the metallic rings f, which completes the construction of the lamp and switch.

The circuit: When the circuit shall have been closed in the lamp the current will enter through the conductor 14 to the screw '1),- thence to the spring 13, from which it passes to the spindles o and p,- thence to the switchspring, to the metallic wires 5 6 7 8, to the metallic rings f; thence to the springs e, to the conductors 1 2 3 4, to the carbon filaments, through which it passes to the conductors 1 2 3 4.; thence to the metallic nut 70, to the screw i, from which it passes to the rightangle bar 1'; thence to the metallic upright if, from which it passes to the conductor 15', leading to the main-line wire. I 1

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is- I 1. In combination with an electric incandescent lamp, a spiral spring mounted on the ends of the leading-in wires, the upper portion of the said spring fitting the said Wires tightly, the lower portion thereof operating free from the end of the conductors when brought in contact with the circuit-connection of the switch-box.

2. In combination with an electric incandescent lamp, the plaster-of-paris disk 0, provided with apertures, spiral springs-e fastened to the ends of the conductors of the lamp, and plaster-of-paris c.

3. In combination with an electric incandescent lamp and switch, the circuit-connection composed of a series of metallic rings or plates insulated from each other by plasterof-paris, the whole forming one solid mass when mounted on the top of the switch-box.

4. In combination with an electric incandescent lamp and circuit-closing mechanism,

an attachment made of glass, provided with grooves having the circuit-connections embedded therein, the line of the grooves corresponding with the sweep of the circuitclosin'g device engagingtherewith, the angular metallic bar, provided with an upright screw on the upper portion thereof for holding the lamp in position, and forming one of the circuit-connections therefor, and the slot on the lower portion of said angular bar, correspond ing with the suitable mechanism for holding it rigid therewith, and forming one of the circuit-connections of the lamp.

5. In combination with an electric incandescent lamp and circuit-closing mechanism, the glass attachment h, provided withthe grooves g, having the metallic wires 5 6 7 8 embedded therein, the upright metallic screw 2', integral with the angular bar a, and slot Z, substantially as shown and described.

6. In combination with an electric incandescent lamp and circuit-closing mechanism, a disk of fiber, mounted with a metallic upright having atightening screw or spring near the top thereof, for looking it, with suitable mechanism for holding it rigid thereto, and

' for forming the circuit-connections of thelamp,

the circuit-connections consisting of a metallic spring or screw mounted on said disk diametrically opposite the metallic upright, the whole held rigid to the glass base by means of a metallic nipple passing up and through the glass base and fiber disk.

7. In combination with an electric incandescent lamp and circuit-closing mechanism,

the fiber disk 11, metallic upright 71, tightening-screw 73*, metallic screw 0, and central threaded aperture of the aforesaid disk, substantially as shown and described.

8. In combination with an electric incandescent lamp, a circuit-closer, having one br more fingers all bent on the same circular alignment, and forming a cylindrical shell, the whole mounted on suitable mechanism, to be controlled thereby.

9. In combination with an electric incandescent lamp, the circuit-closer m, provided with the fingers 9 10 11 12, swivelsleeve a, notch 02, spindles 0 p, spindle-head p, spiral spring Q, metallic sleeve r, stop-collar t, spring 13, and handle .9, substantially as shown and described.

10. In combination with an electric incandescent lamp and circuitcloser, the metallic rings f, glass top A, screw-nut a, metallic screw i, integral with the angular bar i, slot Z, glass attachment h, grooves g, and metallic wires 5 6 7 S.

11. In combination with an electric incandescent lamp, the glass cylinder B, provided withapertures, metallic sleeve 1", spindle p, stop-collar t, spring 13, spindle 0, swivel-sleeve a, notch 91;, multiple circuit-closer m, and spiral spring Q, substantially as shown and described.

12. In an electric incandescent lamp and circuit-closer, the combination, substantially as shown and described, of the fiber disk '0, metallic upright i, tightening-screw 11*, metallic screw '0, metallic nipple w, and glass base B Signed at New York, in the county of New York and State of New York, this 31st day of May, A. D. 1883.

CHARLES G. PERKINS.

Witnesses:

J A. HURDLE, J. M. PARKHURST. 

